Hello, recently I noticed that after parking my car and turning it off, the fans would continue running for a few minutes, maybe even longer. I decided to use an OBD reader while idling and found that the temperature was at 113°C, sometimes even reaching 114°C, which is very concerning. I flushed the coolant and replaced it with Mazda FL 22 gold coolant, but the temperature still remains high, at around 108°C. I live in Scotland where the average temperature is about 14°C outside. I'd like to know what could be causing this issue with my car.

 

Your car is not rejecting enough heat, so either not enough airflow through the rad or not enough coolant flow. You can start by checking whether the water pump turns freely, if both fans work, if the under-engine plastics are complete all the way up to the front lip, and if there are bubbles in the coolant overflow bottle while the car is running. And obviously that there is coolant.